Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1101-0111-0100 pattern in any orientation.

A146862

Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1101-0111-0100 pattern in any orientation.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =17a(6) =49a(7) =273a(8) =1285a(9) =6059a(10) =40935a(11) =430893a(12) =4529543a(13) =70592583a(14) =1153559653a(15) =26967984571

External references